Supplemental Financial Statement Data - Schedule of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	12 Months Ended
	Jun. 27, 2025	Jun. 28, 2024	Jun. 30, 2023
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	$ 11,082	$ 11,439	$ 12,977
Other comprehensive loss	232	(130)	93
Income tax benefit related to items of other comprehensive loss	(19)	21	(29)
Other comprehensive income (loss), net of tax	213	(109)	64
Net transfers to Western Digital Corporation, including spin-off-related adjustments	(10)
Ending balance	9,216	11,082	11,439
Losses reclassified out of AOCL related to foreign exchange contracts	189	215
Accumulated Other Comprehensive Loss
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(452)	(343)	(407)
Ending balance	(249)	(452)	(343)
Foreign Currency Translation Adjustment
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(208)	(165)
Other comprehensive loss	10	(43)
Income tax benefit related to items of other comprehensive loss	0	0
Other comprehensive income (loss), net of tax	10	(43)
Net transfers to Western Digital Corporation, including spin-off-related adjustments	(4)
Ending balance	(202)	(208)	(165)
Unrealized Income (Losses) on Derivative Contracts
Accumulated Other Comprehensive Income (Loss) [Roll Forward]
Beginning balance	(244)	(178)
Other comprehensive loss	222	(87)
Income tax benefit related to items of other comprehensive loss	(19)	21
Other comprehensive income (loss), net of tax	203	(66)
Net transfers to Western Digital Corporation, including spin-off-related adjustments	(6)
Ending balance	$ (47)	$ (244)	$ (178)